On 28 Mar, 15:25, David Hansen
wrote:
On 28 Mar 2007 06:46:38 -0700 someone who may be
" wrote this:-

So you get the most hot water for heating on the sunniest days when
you are least likely to use it. I think you have it arse about face.
Use solar to augment the hot water which you will use year round.

Properly designed a solar system will produce almost all the hot
water needed in summer.

In winter it is unlikely to produce more than a small fraction of
the space heating requirement, unless it is grossly oversized for
summer use.

In the spring and autumn it might provide a useful fraction of the
space heating requirement on some days.

If one wants to extend it to space heating, sensible thing is to use
warm air panels for that, as theyre inherently much more efficient,
have a much longer season and cost less.


NT